mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2024-12-05 14:40:42 +01:00
ebec95a522
* [bugfix] Lock when checking/creating notifs to avoid race * test notif spam
496 lines
14 KiB
Go
496 lines
14 KiB
Go
// GoToSocial
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// Copyright (C) GoToSocial Authors admin@gotosocial.org
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// SPDX-License-Identifier: AGPL-3.0-or-later
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package workers
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import (
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"context"
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"errors"
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apimodel "github.com/superseriousbusiness/gotosocial/internal/api/model"
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"github.com/superseriousbusiness/gotosocial/internal/db"
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"github.com/superseriousbusiness/gotosocial/internal/gtscontext"
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"github.com/superseriousbusiness/gotosocial/internal/gtserror"
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"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
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"github.com/superseriousbusiness/gotosocial/internal/log"
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"github.com/superseriousbusiness/gotosocial/internal/processing/account"
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"github.com/superseriousbusiness/gotosocial/internal/processing/media"
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"github.com/superseriousbusiness/gotosocial/internal/state"
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)
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// util provides util functions used by both
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// the fromClientAPI and fromFediAPI functions.
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type utils struct {
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state *state.State
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media *media.Processor
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account *account.Processor
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surface *Surface
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}
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// wipeStatus encapsulates common logic
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// used to totally delete a status + all
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// its attachments, notifications, boosts,
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// and timeline entries.
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func (u *utils) wipeStatus(
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ctx context.Context,
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statusToDelete *gtsmodel.Status,
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deleteAttachments bool,
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) error {
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var errs gtserror.MultiError
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// Either delete all attachments for this status,
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// or simply unattach + clean them separately later.
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//
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// Reason to unattach rather than delete is that
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// the poster might want to reattach them to another
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// status immediately (in case of delete + redraft)
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if deleteAttachments {
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// todo:u.state.DB.DeleteAttachmentsForStatus
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for _, id := range statusToDelete.AttachmentIDs {
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if err := u.media.Delete(ctx, id); err != nil {
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errs.Appendf("error deleting media: %w", err)
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}
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}
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} else {
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// todo:u.state.DB.UnattachAttachmentsForStatus
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for _, id := range statusToDelete.AttachmentIDs {
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if _, err := u.media.Unattach(ctx, statusToDelete.Account, id); err != nil {
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errs.Appendf("error unattaching media: %w", err)
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}
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}
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}
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// delete all mention entries generated by this status
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// todo:u.state.DB.DeleteMentionsForStatus
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for _, id := range statusToDelete.MentionIDs {
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if err := u.state.DB.DeleteMentionByID(ctx, id); err != nil {
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errs.Appendf("error deleting status mention: %w", err)
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}
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}
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// delete all notification entries generated by this status
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if err := u.state.DB.DeleteNotificationsForStatus(ctx, statusToDelete.ID); err != nil {
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errs.Appendf("error deleting status notifications: %w", err)
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}
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// delete all bookmarks that point to this status
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if err := u.state.DB.DeleteStatusBookmarksForStatus(ctx, statusToDelete.ID); err != nil {
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errs.Appendf("error deleting status bookmarks: %w", err)
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}
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// delete all faves of this status
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if err := u.state.DB.DeleteStatusFavesForStatus(ctx, statusToDelete.ID); err != nil {
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errs.Appendf("error deleting status faves: %w", err)
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}
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if pollID := statusToDelete.PollID; pollID != "" {
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// Delete this poll by ID from the database.
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if err := u.state.DB.DeletePollByID(ctx, pollID); err != nil {
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errs.Appendf("error deleting status poll: %w", err)
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}
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// Delete any poll votes pointing to this poll ID.
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if err := u.state.DB.DeletePollVotes(ctx, pollID); err != nil {
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errs.Appendf("error deleting status poll votes: %w", err)
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}
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// Cancel any scheduled expiry task for poll.
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_ = u.state.Workers.Scheduler.Cancel(pollID)
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}
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// delete all boosts for this status + remove them from timelines
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boosts, err := u.state.DB.GetStatusBoosts(
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// we MUST set a barebones context here,
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// as depending on where it came from the
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// original BoostOf may already be gone.
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gtscontext.SetBarebones(ctx),
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statusToDelete.ID)
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if err != nil {
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errs.Appendf("error fetching status boosts: %w", err)
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}
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for _, boost := range boosts {
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if err := u.surface.deleteStatusFromTimelines(ctx, boost.ID); err != nil {
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errs.Appendf("error deleting boost from timelines: %w", err)
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}
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if err := u.state.DB.DeleteStatusByID(ctx, boost.ID); err != nil {
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errs.Appendf("error deleting boost: %w", err)
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}
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}
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// delete this status from any and all timelines
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if err := u.surface.deleteStatusFromTimelines(ctx, statusToDelete.ID); err != nil {
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errs.Appendf("error deleting status from timelines: %w", err)
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}
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// finally, delete the status itself
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if err := u.state.DB.DeleteStatusByID(ctx, statusToDelete.ID); err != nil {
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errs.Appendf("error deleting status: %w", err)
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}
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return errs.Combine()
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}
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// redirectFollowers redirects all local
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// followers of originAcct to targetAcct.
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//
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// Both accounts must be fully dereferenced
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// already, and the Move must be valid.
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//
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// Return bool will be true if all goes OK.
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func (u *utils) redirectFollowers(
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ctx context.Context,
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originAcct *gtsmodel.Account,
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targetAcct *gtsmodel.Account,
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) bool {
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// Any local followers of originAcct should
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// send follow requests to targetAcct instead,
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// and have followers of originAcct removed.
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//
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// Select local followers with barebones, since
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// we only need follow.Account and we can get
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// that ourselves.
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followers, err := u.state.DB.GetAccountLocalFollowers(
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gtscontext.SetBarebones(ctx),
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originAcct.ID,
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)
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if err != nil && !errors.Is(err, db.ErrNoEntries) {
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log.Errorf(ctx,
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"db error getting follows targeting originAcct: %v",
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err,
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)
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return false
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}
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for _, follow := range followers {
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// Fetch the local account that
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// owns the follow targeting originAcct.
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if follow.Account, err = u.state.DB.GetAccountByID(
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gtscontext.SetBarebones(ctx),
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follow.AccountID,
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); err != nil {
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log.Errorf(ctx,
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"db error getting follow account %s: %v",
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follow.AccountID, err,
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)
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return false
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}
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// Use the account processor FollowCreate
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// function to send off the new follow,
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// carrying over the Reblogs and Notify
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// values from the old follow to the new.
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//
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// This will also handle cases where our
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// account has already followed the target
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// account, by just updating the existing
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// follow of target account.
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//
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// Also, ensure new follow wouldn't be a
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// self follow, since that will error.
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if follow.AccountID != targetAcct.ID {
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if _, err := u.account.FollowCreate(
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ctx,
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follow.Account,
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&apimodel.AccountFollowRequest{
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ID: targetAcct.ID,
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Reblogs: follow.ShowReblogs,
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Notify: follow.Notify,
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},
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); err != nil {
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log.Errorf(ctx,
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"error creating new follow for account %s: %v",
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follow.AccountID, err,
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)
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return false
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}
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}
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// New follow is in the process of
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// sending, remove the existing follow.
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// This will send out an Undo Activity for each Follow.
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if _, err := u.account.FollowRemove(
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ctx,
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follow.Account,
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follow.TargetAccountID,
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); err != nil {
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log.Errorf(ctx,
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"error removing old follow for account %s: %v",
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follow.AccountID, err,
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)
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return false
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}
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}
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return true
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}
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func (u *utils) incrementStatusesCount(
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ctx context.Context,
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account *gtsmodel.Account,
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status *gtsmodel.Status,
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) error {
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// Lock on this account since we're changing stats.
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unlock := u.state.ProcessingLocks.Lock(account.URI)
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defer unlock()
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// Populate stats.
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if account.Stats == nil {
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if err := u.state.DB.PopulateAccountStats(ctx, account); err != nil {
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return gtserror.Newf("db error getting account stats: %w", err)
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}
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}
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// Update stats by incrementing status
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// count by one and setting last posted.
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*account.Stats.StatusesCount++
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account.Stats.LastStatusAt = status.CreatedAt
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if err := u.state.DB.UpdateAccountStats(
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ctx,
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account.Stats,
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"statuses_count",
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"last_status_at",
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); err != nil {
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return gtserror.Newf("db error updating account stats: %w", err)
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}
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return nil
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}
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func (u *utils) decrementStatusesCount(
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ctx context.Context,
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account *gtsmodel.Account,
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) error {
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// Lock on this account since we're changing stats.
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unlock := u.state.ProcessingLocks.Lock(account.URI)
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defer unlock()
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// Populate stats.
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if account.Stats == nil {
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if err := u.state.DB.PopulateAccountStats(ctx, account); err != nil {
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return gtserror.Newf("db error getting account stats: %w", err)
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}
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}
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// Update stats by decrementing
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// status count by one.
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//
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// Clamp to 0 to avoid funny business.
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*account.Stats.StatusesCount--
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if *account.Stats.StatusesCount < 0 {
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*account.Stats.StatusesCount = 0
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}
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if err := u.state.DB.UpdateAccountStats(
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ctx,
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account.Stats,
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"statuses_count",
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); err != nil {
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return gtserror.Newf("db error updating account stats: %w", err)
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}
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return nil
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}
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func (u *utils) incrementFollowersCount(
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ctx context.Context,
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account *gtsmodel.Account,
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) error {
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// Lock on this account since we're changing stats.
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unlock := u.state.ProcessingLocks.Lock(account.URI)
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defer unlock()
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// Populate stats.
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if account.Stats == nil {
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if err := u.state.DB.PopulateAccountStats(ctx, account); err != nil {
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return gtserror.Newf("db error getting account stats: %w", err)
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}
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}
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// Update stats by incrementing followers
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// count by one and setting last posted.
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*account.Stats.FollowersCount++
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if err := u.state.DB.UpdateAccountStats(
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ctx,
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account.Stats,
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"followers_count",
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); err != nil {
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return gtserror.Newf("db error updating account stats: %w", err)
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}
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return nil
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}
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func (u *utils) decrementFollowersCount(
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ctx context.Context,
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account *gtsmodel.Account,
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) error {
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// Lock on this account since we're changing stats.
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unlock := u.state.ProcessingLocks.Lock(account.URI)
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defer unlock()
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// Populate stats.
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if account.Stats == nil {
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if err := u.state.DB.PopulateAccountStats(ctx, account); err != nil {
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return gtserror.Newf("db error getting account stats: %w", err)
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}
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}
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// Update stats by decrementing
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// followers count by one.
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//
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// Clamp to 0 to avoid funny business.
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*account.Stats.FollowersCount--
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if *account.Stats.FollowersCount < 0 {
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*account.Stats.FollowersCount = 0
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}
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if err := u.state.DB.UpdateAccountStats(
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ctx,
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account.Stats,
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"followers_count",
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); err != nil {
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return gtserror.Newf("db error updating account stats: %w", err)
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}
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return nil
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}
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func (u *utils) incrementFollowingCount(
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ctx context.Context,
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account *gtsmodel.Account,
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) error {
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// Lock on this account since we're changing stats.
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unlock := u.state.ProcessingLocks.Lock(account.URI)
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defer unlock()
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// Populate stats.
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if account.Stats == nil {
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if err := u.state.DB.PopulateAccountStats(ctx, account); err != nil {
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return gtserror.Newf("db error getting account stats: %w", err)
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}
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}
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// Update stats by incrementing
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// followers count by one.
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*account.Stats.FollowingCount++
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if err := u.state.DB.UpdateAccountStats(
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ctx,
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account.Stats,
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"following_count",
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); err != nil {
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return gtserror.Newf("db error updating account stats: %w", err)
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}
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return nil
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}
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func (u *utils) decrementFollowingCount(
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ctx context.Context,
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account *gtsmodel.Account,
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) error {
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// Lock on this account since we're changing stats.
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unlock := u.state.ProcessingLocks.Lock(account.URI)
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defer unlock()
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// Populate stats.
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if account.Stats == nil {
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if err := u.state.DB.PopulateAccountStats(ctx, account); err != nil {
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return gtserror.Newf("db error getting account stats: %w", err)
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}
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}
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// Update stats by decrementing
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// following count by one.
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//
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// Clamp to 0 to avoid funny business.
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*account.Stats.FollowingCount--
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if *account.Stats.FollowingCount < 0 {
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*account.Stats.FollowingCount = 0
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}
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if err := u.state.DB.UpdateAccountStats(
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ctx,
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account.Stats,
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"following_count",
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); err != nil {
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return gtserror.Newf("db error updating account stats: %w", err)
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}
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return nil
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}
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func (u *utils) incrementFollowRequestsCount(
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ctx context.Context,
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account *gtsmodel.Account,
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) error {
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// Lock on this account since we're changing stats.
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unlock := u.state.ProcessingLocks.Lock(account.URI)
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defer unlock()
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// Populate stats.
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if account.Stats == nil {
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if err := u.state.DB.PopulateAccountStats(ctx, account); err != nil {
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return gtserror.Newf("db error getting account stats: %w", err)
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}
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}
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// Update stats by incrementing
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// follow requests count by one.
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*account.Stats.FollowRequestsCount++
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if err := u.state.DB.UpdateAccountStats(
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ctx,
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account.Stats,
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"follow_requests_count",
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); err != nil {
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return gtserror.Newf("db error updating account stats: %w", err)
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}
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return nil
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}
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func (u *utils) decrementFollowRequestsCount(
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ctx context.Context,
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account *gtsmodel.Account,
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) error {
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// Lock on this account since we're changing stats.
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unlock := u.state.ProcessingLocks.Lock(account.URI)
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defer unlock()
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// Populate stats.
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if account.Stats == nil {
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if err := u.state.DB.PopulateAccountStats(ctx, account); err != nil {
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return gtserror.Newf("db error getting account stats: %w", err)
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}
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}
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// Update stats by decrementing
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// follow requests count by one.
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//
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// Clamp to 0 to avoid funny business.
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*account.Stats.FollowRequestsCount--
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if *account.Stats.FollowRequestsCount < 0 {
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*account.Stats.FollowRequestsCount = 0
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}
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if err := u.state.DB.UpdateAccountStats(
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ctx,
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account.Stats,
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"follow_requests_count",
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); err != nil {
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return gtserror.Newf("db error updating account stats: %w", err)
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}
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return nil
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}
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